Threat Description



Category: Malware
Type: Virus
Platform: W32
Aliases: Hate, Klaeren


This virus contains a serious error, which prevents it from successfully infecting any file larger than around 4000 bytes. Larger files will be partially overwritten with garbage. The virus is encrypted, and contains the text string

    Klaeren Ha¡, Ha¡!


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.


More information on scanning and removal options available in your F-Secure product can be found in the Help Center.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

Contact Support

For further assistance, F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.


Suspect a file or URL was wrongly detected? Submit a sample to our Labs for analysis

Submit Now

Give And Get Advice

Give advice. Get advice. Share the knowledge on our free discussion forum.

Learn More